<template>
	<view class="my-settle-container">
		<!-- 全选 -->
		<label class="radio" @click="changeAllState">
			<radio color="#c00000" :checked="isFullCheck" /><text>全选</text>
		</label>
		<!-- 合计 -->
		<view class="amount-box">
			合计:<text class="amount">${{checkedGoodsAmount}}</text>
		</view>
		<!-- 结算按钮 -->
		<view class="btn-settle" @click="settlement">
			结算({{checkedCount}})
		</view>
	</view>
</template>

<script>
	import {
		mapGetters,
		mapMutations,
		mapState
	} from 'vuex'
	export default {
		name: "my-settle",
		data() {
			return {
				// 倒计时秒数
				second: 3,
				timer: null
			};
		},
		computed: {
			...mapGetters('cart', ['checkedCount', 'total', 'checkedGoodsAmount']),
			...mapGetters('m_user', ['addstr']),
			...mapState('m_user',['token']),
			...mapState('cart',['cart']),
			isFullCheck() {
				return this.total === this.checkedCount
			}
		},
		methods: {
			...mapMutations('cart', ['updateAllGoodsState']),
			...mapMutations('m_user',['updateRedirectInfo']),
			// 全选功能
			changeAllState() {
				this.updateAllGoodsState(!this.isFullCheck)
			},
			// 一键结算点击
			settlement() {
				// 判断是否勾选了要结算的商品
				if (!this.checkedCount) return uni.$showMsg('请选择要结算的商品!')
				// 判断是否选择了收货地址
				if (!this.addstr) return uni.$showMsg('请选择收货地址')
					// 判断是否登陆
				if(!this.token) return this.delayNavigate()
				// 调用创建订单支付方法
				this.payOrder()
				},
				// 展示倒计时的提示消息
				showTips(n){
					uni.showToast({
						icon:'none',
						title: '请登录后再结算! '+ n + '秒后自动跳转到登录页',
						mask:true,//防止点击穿透的遮罩层
						duration:1500 
					})
				},
				//延时导航到my页面
				delayNavigate() {
					this.second =3
					this.showTips(this.second)
					
					this.timer = setInterval(() => {
					
						this.second --
						if( this.second <= 0) {
							clearInterval(this.timer)
							
							uni.switchTab({
								url: '/pages/my/my',
								success: () => {
									this.updateRedirectInfo({
										openType: 'switchTab',
										from: '/pages/cart/cart'
									})
								}
							})
							
							return
						}
						
						this.showTips(this.second)
					},1000)
				},
				//创建订单
				async payOrder() {
					// 1.创建订单
					// 1.1准备订单参数对象
					const orderInfo = {
						order_price: this.checkedGoodsAmount,
						consignee_addr: this.addstr,//收货地址
						goods: this.cart.filter(x=> x.goods_state).map(x=>({
							goods_id: x.goods_id,
							goods_number: x.goods_count,
							goods_price: x.goods_price,
						}))
					}
					// 1.2发起请求创建订单
					const { data: res } = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
					if(res.meta.status !== 200) return uni.$showMsg('创建订单失败')
					// 1.3得到服务器响应的"订单编号"
					const orderNumber = res.message.order_number
					
					// 2.订单预支付
					// 2.1发起请求获取订单的支付信息
					const {data: res2} = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', {order_number: orderNumber})
					// 2.2 预支付订单失败
					if(res2.meta.status !== 200) return uni.$showMsg('预付订单生成失败')
					// 2.3 得到订单支付相关的必要参数
					const payInfo = res2.message.pay 
					console.log(payInfo);
					// 3.发起微信支付
					// 3.1 调用uni.requestPayment()发起微信支付
					const [err , succ] =  await uni.requestPayment({payInfo})
					// 3.2 未完成支付
					if(err) return uni.$showMsg('订单未支付')
					// 3.3完成了支付, 调用APi进一步查询支付结果
					const {data: res3} = await uni.$http.post('/api/public/v1/my/orders/chkOrder', {order_number: orderNumber})
					console.log(res3);
					// 3.4检测到订单未支付
					if(res3.meta.status !== 200) return uni.$showMsg('订单未支付完成')
					// 3.5检测到订单支付完成
					uni.showToast({
						title: '支付成功',
						icon: 'success'
					})
				}
			}
		}
</script>

<style lang="scss">
	.my-settle-container {
		display: flex;
		justify-content: space-between;
		position: fixed;
		bottom: 0;
		left: 0;
		width: 100%;
		height: 50px;
		background-color: bisque;
		align-items: center;
		background-color: white;
		font-size: 14px;
		padding-left: 5px;

		.radio {
			display: flex;
			align-items: center;
		}

		.amount-box {

			.amount {
				color: #c00000;
				font-weight: bold;

			}
		}

		.btn-settle {
			background-color: #c00000;
			height: 50px;
			color: white;
			line-height: 50px;
			padding: 0 10px;
			min-width: 100px;
			text-align: center;
		}
	}
</style>